@article {306800, title = {End of the African Humid Period}, journal = {Science}, volume = {320}, year = {2008}, pages = {765-768}, abstract = {
The Sahara was more humid and habitable thousands of years ago. Reconstructions of North African hydroclimate show that the onset of aridity started in the north, with the monsoon rains weakening progressively later at lower latitudes.
}, doi = {10.1038/ngeo2355}, url = {http://www.nature.com/ngeo/journal/v8/n2/full/ngeo2355.html}, author = {de Menocal, PB} }